Patent · US Expired

Industrial fabrics of controlled air permeability and high ageing resistance and manufacture thereof

US5356680A · kind A · utility

59Cited by

24References

27Claims

0Family size

Assignee

Akzo N.V. · NL

Inventors

Wolf R. Krummheuer · Wuppertal, DE
Hans A. Graefe · Schwelm, DE
Volker Siejak · Sörup, DE

Key dates

Filing date	Jul 16, 1992
Grant date	Oct 18, 1994
Priority date	—
Expiry date	Jul 16, 2012

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/30
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Industrial fabrics have controlled air permeability <120 l/dm.sup.2 .times. min and a very good ageing resistance. The air permeability value does not change by more than 15% in the ageing test. This fabric can be made by adapting production conditions for weaving, wet processing, and in particular, hot air treatment. The process is particularly suited for manufacturing air bag fabrics.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.